Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

57°F

14°C

Humidity 85%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 09 Dec 05:52 PM PST
Extended Forecast for

11 Miles NE Happy Camp CA

  • Tonight

    Tonight: A 20 percent chance of rain before 8pm.  Snow level 8500 feet. Mostly cloudy, with a low around 42. West wind 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 42 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 51. West wind 5 to 8 mph.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. South southwest wind around 10 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 50. East wind 5 to 9 mph becoming light northeast  in the afternoon.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. East southeast wind 8 to 11 mph.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before 8pm. Snow level 8500 feet. Mostly cloudy, with a low around 42. West wind 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 51. West wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 41. South southwest wind around 10 mph.
Thursday
Sunny, with a high near 50. East wind 5 to 9 mph becoming light northeast in the afternoon.
Thursday Night
Mostly clear, with a low around 40. East southeast wind 8 to 11 mph.
Friday
Sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
A slight chance of rain. Snow level 6900 feet. Partly sunny, with a high near 44.
Sunday Night
A chance of rain. Snow level 7200 feet. Mostly cloudy, with a low around 39.
Monday
Rain. Snow level 7500 feet rising to 8100 feet in the afternoon. Mostly cloudy, with a high near 43.
Monday Night
Rain. Snow level 7900 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 40.
Tuesday
A chance of rain. Snow level 6600 feet. Mostly cloudy, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Happy Camp CA
 41.92°N 123.21°W (Elev. 5666 ft)
3:41 pm PST Dec 9, 2025
6pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database